Walter Wick (born February 23, 1953) is an American artist and photographer best known for the elaborate images in two series of picture book activities for young children, I Spy and Can You See What I See?, both published by Scholastic.

Wick was born in Hartford, Connecticut^{[citation needed]} and grew up in rural East Granby, Connecticut. His brother introduced him to photography.

Wick studied photojournalism at the Paier College of Art.

After graduation, he opened a studio in New York.

He embarked on a career as a commercial photographer and eventually shifted to photo-illustration for books and magazines. He contributed to Scholastic's Let's Find Out and Super Science series and photographed hundreds of mass-market magazine covers. He also created photographic puzzles for Games magazine.

In 1991, Wick began a collaboration with writer Jean Marzollo on the enormously successful I Spy search-and-find picture books. Eight original titles were produced and millions of copies sold. Wick received the Boston Globe-Horn Book first prize for non-fiction for his book A Drop of Water: A Book of Science and Wonder (1997). His book Walter Wick's Optical Tricks was named one of the year's "best illustrated books" by The New York Times.

In 1993, Wick photographed the cover artwork of Scottish dream pop band Cocteau Twins' seventh studio album, Four-Calendar Café.

In 2003, Wick and his wife purchased an abandoned 1920 firehouse from the city of Hartford and renovated the building into an art studio.